baber/WOPTO huggingface dataset:
Patent GB-788312-A (GB)
Title: Improvements in or relating to abrasive tools
IPC: B24D3/08
Filed: 1954-05-03
Abstract: 788,312. Abrasive tools. HOLER, R. May 3. 1954 [July 23, 1953], No. 12829/54. Class 60. In the manufacture of an abrasive tool, such as a grinding wheel or point, a metal core is coated with a metal of lower melting point such as tin, metallic abrasive granules are evenly distributed over the coated core, the core is then heated to the melting point of the coating metal, a metal bonding agent capable of alloying with the coating metal and having a melting point intermediate between that of the metal core and that of the coating metal is electrodeposited over the latter, the tool being finally heated to a temperature such that the bonding agent forms with the coating metal a bonding layer for the metallic abrasive granules. The metallic abrasive may be a metal or metal carbide, e.g., tungsten, tungsten carbide or titanium carbide. The tin coating is formed by electrodeposition or by dipping ; it is coated with a very thin layer of flux of such consistency as to permit temporary fixing of the abrasive granules therein. The electrodeposited bonding metal is preferably copper, but silver may be used. The final heating is carried out in a reducing medium such as hydrogen, and to prevent shifting of the abrasive granules the bonding agent may be electrolytically covered with a metal of higher melting point; alternatively the article may be placed in a refractory covering or in powdered coal before the final heating.
Patent GB-495078-A (GB)
Title: Improvements in cathodes for high-pressure metal-vapour electric discharge lamps
IPC: H01J61/073
Filed: 1937-05-05
Abstract: 495,078. Discharge lamps. GENERAL ELECTRIC CO., Ltd., FRANCIS, V. J., RYDE, J. W., and PIRANI, M. May 5, 1937, No. 12852. [Class 39 (i)] In high-pressure metalvapour lamps adapted to be operated so that the maximum temperature of the interior surface of the envelope exceeds 800‹ C., the envelope is of quartz and the cathode consists mainly or wholly of thoria or a compound of thorium which, in the operation of the lamp, produces thoria and is substantially free from alkaline earth compounds. The thoria may be mixed with tungsten powder or similar thermionically inert material. As shown in Fig. 1, the cathode may consist of a tungsten cylinder 1, with a central rod 2 of thoria. An alternative construction is shown in Fig. 2, in which the active material is contained in a mesh coil 6 surrounding a central tungsten wire 4 terminating in a close spiral 5 forming a mushroom head. In a further construction, a stick of pine sintered thoria is enclosed in two concentric tungsten helices. Specification 397,162 is referred to. According to the Provisional Specification the thoria may contain 5-10 per cent of barium strontium carbonates. Reference has been directed by the Comptroller to Specification 459,250.
Patent GB-562858-A (GB)
Title: Safety razor blades and other fine edge tools and the production thereof
IPC: C21D1/04
Filed: 1942-09-11
Abstract: 562,858. Tempering blades. KAYSER, J. F., and GILLETTE INDUSTRIES, Ltd. Sept. 11, 1942, No. 12860. [Class 72] In the manufacture of safety razor blades and other fine edge tools, the blades &c. are ground, honed and, if desired, stropped, either in strip form or after the strip is cut up into separate blades and then tempered for several hours at a temperature below 200‹ C., e.g. 6 hours at 165‹ C. Other tempering heat treatments such as end or medial softening or hardening treatment may be applied to the blades &c. before grinding and then the long tempering is the final heat treatment. In an example, the blades in the form of a strip are hardened and tempered at 240‹ C. for six seconds and are then ground, honed and stropped. The blades are then tempered for 6 hours at 165‹ C. This treatment may be carried out in oil or mercury or in air or an atmosphere of ammonia, cracked ammonia, hydrogen or spent coal gas and the finished strip or blade may be kept in a state of vibration of ultra-audible frequency produced either mechanically or by electro-magnetic oscillation or both during the tempering. Specifications 28441/09, [Class 72], 401,366 and 403,537 are referred to.
Patent GB-625213-A (GB)
Title: Improvements in or relating to extruding machines
IPC: B29C48/475
Filed: 1947-05-13
Abstract: 625,213. Extruding foodstuffs &c. BUTLER, W. H:, and ROBERTS, T. May 13, 1947, No. 12860. [Class 87 (ii)] [Also in Groups XVII and XXII] An extrusion cylinder 7 is pivotally mounted near its nozzle end by means of integral trunnions 6 which engage in recesses 4 in the side plates 1 of the machine frame. When the extrusion plunger 11 is withdrawn it engages a hook 25 on one end of a pivoted lever 21, causing the other end 31 of the lever to rock the cylinder about its pivots, thus allowing the material which is to be extruded, e.g. foodstuffs or sand for foundry cores, to be introduced into the cylinder through its open end. The part 26 of the lever 21 acts-as a counterweight to normally hold the hook 25 down on the inside of the cylinder and thus keep it in place during extrusion. The hook may have a rubber pad 27. In a modification, (Fig. 6, not shown) the hook engages in a notch provided on the outside of the cylinder, and the arm 26 has a roller on the part 31 which engages the cylinder, while it is being rocked. The recesses 4 have overhanging parts 33 to prevent the cylinder rising during extrusion. The cylinder has ribs 8, running from the trunnions 6, which rest on ledges on the side plates 1. The plunger may be operated by a rack and pinion driven through gearing 17 by movement of a handle, or it may be operated by power. A guard may be provided for the gearing. The cylinder may be made of rustless iron or steel, or its internal surfaces may be vitreous enamelled or electro-plated and the face of the plunger may be electro-tinned.
Patent GB-552502-A (GB)
Title: Improvements in and connected with electric wiring systems
IPC: H02G3/08
Filed: 1941-10-06
Abstract: 552,502. Tube couplings. CRABTREE & CO., Ltd., J. A., McLOUGHLIN, H. F., HILL, W. E., MORGAN, R. W., and WINTLE, T.D.G. Oct. 6, 1941, No. 12883. [Class 99 (i)] [Also in Group XXXVI] In a wiring system for aeroplanes &c. the conductors are arranged loosely in a resilient conduit tube which is attached to the wall of a distribution box &c., by means of a resilient grommet, secured to the conduit and annularly grooved for insertion by a lateral movement into a slot in the wall of the box. The box e has semicircular recesses g<SP>11</SP> in its base and cover to form a circular aperture corresponding to a groove k in the grommet i. A liner f secured within the box has slots g comprising a tapered portion leading to a constriction beyond which the slot is of circular outline g<SP>1</SP>. The grommet is resiliently compressed to pass the constriction which then retains it in place. The grommet has a tapered formation l to direct water away from the box-wall. The conduit tube and grommet may be made of polyvinyl chloride. Specification 552,521, [Group XXXVI], is referred to.
Patent GB-911271-A (GB)
Title: Improvements in a method and apparatus for the wet-cleaning of gases
Inventor: KRANTZ EVERT
IPC: B01D47/10
Filed: 1961-04-10
Abstract: 911,271. Washing gases. SVENSKA FLATFABRIKEN A.B. April 10, 1961, No. 12900/61. Class 55 (2). Gas to be cleaned is passed downwardly through a chamber 6, sprayed with liquid at 7, and passes laterally through a filter 9 which has its inner surface sprayed with liquid from nozzles 11 so that the impurities pass into a tank 1a of the washing liquid. A pump 5 may recirculate the liquid to spray 7 and the nozzles 11 may be fed, through pipe 12, with the makeup liquid required as determined by float level regulator 13, a chemically active solvent being added to dissolve solid deposits from the filter 9.
Patent GB-643616-A (GB)
Title: Improvements in and relating to the closing of bottles filled in the inverted position
IPC: B67C7/00
Filed: 1948-05-11
Abstract: 643,616. Stoppering. STALLER, J. May 11, 1948, No. 12920. Convention date, June 4, 1947. [Class 125(ii)] A bottle 3; having a permanent ring 4 and a rubber cushion 5 around its mouth, is supported neck downward during filling in a recess in the filling head 1. The flanged cap 14 to be sealed to the ring 4 is supported in a transverse stepped bore 13 having a groove 24 in a slidable cylindrical member 9 provided also with a second, smaller, transverse bore 12. The member 9 is first slid to the right sufficiently for the bore 12 to register with the bottle axis, the bore 13 being partly within a recess 23 of the head. A protective gas supply pipe 21 is now pushed up into the bottle, the gas compressing the residual air against the bottom of the bottle. The supply of liquid with which the bottle is to be filled is now turned on from the supply 7, 8 and the seal 14 which was surrounded by the gas by way of groove 24 recess 23 and bore 13 is now surrounded by the liquid. The pipe 21 is now withdrawn and the member 9 moved further to the right so that the seal 14 now registers with the bottle mouth. All the parts 15, 20, 21 are now raised simultaneously to push the seal into the ring 4 whereafter the parts 20, 21 are raised a little farther relatively to the part 15 so that the upper end of the member 20 forces the jaws 18 of the member 15 apart as shown in Fig. 3 thereby deforming the seal to effect the closure.
Patent GB-1028070-A (GB)
Title: Boilers and retarders for use therein
Inventor: BAUER FREDERICK WALTER
IPC: F23M9/00
Filed: 1965-03-26
Abstract: 1,028,070. Boiler furnaces. VAUXHALL BOILER CO. Ltd. March 26, 1965, No. 13024/65. Headings F4A and F4B. A removable gas flow retarder for use in annular return flues of a steam of hot water boiler (Fig. 1, not shown), comprises axially spaced rows 18 of circumferentially spaced baffle plates 19, alternate rows being staggered. Each baffle plate 19 located in position by weld spots 24 is pivotably mounted about connecting rods 22. In modifications (Figs. 4 and 5, not shown), the plates may be circumferentially curved and connected by rods extending through all the rows of plates. The complete retarder, formed from a number of part circumferential sections of mild, stainless or alloy steel, is located in the annular flue by axial rails extending through slots (not shown) in the baffle plates, and may be oscillated to remove surface deposits from the flue surfaces. The total retarder length, the space between the rows, the spaces between the baffle plates and the length and width of the plates may all be varied to give the desired gas flow pattern. The retarder may be collapsed for storage.
Patent GB-312468-A (GB)
Title: Improvements in or connected with sound reproducing and recording apparatus
IPC: H04R11/08
Filed: 1928-05-04
Abstract: 312,468. Johnson, C. H. May 4, 1928. Magnetic instruments.-In an electromagnetic instru- , ment of the vibrating armature type, more particularly a gramophone pick-up, the main restoring force on the armature is that due to an auxiliary magnet pole, the axis of vibration of the armature being further from the auxiliary pole than from the main poles carrying the winding, and preferably on the side of the latter remote from the former. In addition the axis of vibration preferably passes sub. stantially through the centre of inertia of the vibratory system. The E-shaped permanent magnet 1, Fig. 1, has its central auxiliary pole 10 of one polarity and its outer poles, on which are mounted pole-pieces 9 and coils 17, of opposite polarity. The armature 11 is carried on a spindle 12 which fits into holes lined with rubber bushes 13 and it vibrates to and from pole-pieces 9, while an extension vibrates transversely across auxiliary pole 10. The tip of the extension and the auxiliary pole face are preferably of the same width and the gap between them is preferably small and carries the whole of the magnetic flux. In a modification, Fig. 4, the main pole-pieces are laminated and the armature is mounted in soft rubber pads 19, between the plates 20, the rubber being allowed to project slightly into the space 21 around the spindle, forming a bush for the holes in plates 20. Another armature mounting, Fig. 6, comprises rubber bushes 13, surrounding the armature spindle 12, and resting in containing caps 22, which are secured to the back plate of the pick-up and are adjustable axially. The permanent magnet may be replaced by an electromagnet, in which case the restoring force due to the auxiliary pole may be varied, or this may be accomplished in the case of the permanent magnet, according to the Provisional Speci. fication, by short-circuiting or diverting by known means part of the magnetic flux from the auxiliary gap. In either case the flux variation serves also as a volume control.
Patent GB-455486-A (GB)
Title: Improvements in processes for the production of neutral or approximately neutral atmospheres or reducing atmospheres and in apparatus for carrying out the process
IPC: C01B32/50
Filed: 1935-04-16
Abstract: 455,486. Furnace atmospheres. BRAYSHAW FURNACES & TOOLS, Ltd., BRAYSHAW, S. N., and RUSHTON, F., Belle Vue Works, Boundary Street, Manchester. April 16, 1935, Nos. 13138/36. Divided out of 455,436. [Classes 51 (i) and 51 (ii)] Neutral or reducing atmospheres for use in the heat treatment of materials are produced by burning pulverized charcoal in air, and automatically controlling the composition of the atmosphere according to the proportions of CO and/or CO2 therein. Combustion may be effected in one or two stages, and in the apparatus shown in Fig. 2 for two-stage combustion, the charcoal is fed from the hopper C through a rotary valve C4 'to the pulverizer D where it is mixed with air, and from which the mixture is drawn by the fan D<1> and supplied through the burner B to the lower of two combustion chambers A2, A<3>. Partial combustion is effected in the chamber A2, and is completed in the chamber A<3> by a supplementary air supply from the pipe b<1>. The heat of the products is used for preheating the primary and secondary supplies of air in the jacket A<1> around the outlet flue a and for drying and preheating the charcoal in the hopper C. The automatic control is effected by a gas analyzer E which is arranged to operate a byepass valve E<2> in the secondary air main or to control the motor C<2> driving the valve C4. In a modification, Figs. 2 and 3 (not shown), a cylindrical primary combustion chamber is surrounded by an annular secondary combustion chamber. In a further modification, Fig. 4a, the primary combustion chamber A<2> is heated externally by a burner F, and combustion is completed in the furnace chamber A<3> by air supplied through the pipe b<1>. In another arrangement, Figs. 5 and 5a (not shown), the primary combustion chamber is situated beneath the floor of the combustion chamber, and above an independent source of heat. A separate burner may be provided for igniting the stream of pulverized charcoal and air. Specification 455,436 is referred to.
Patent GB-131810-A (GB)
IPC: B61J3/12
Abstract: 131,810. Hanks, C., and Cousins, G. Dec. 23, 1918. Actuated or applied by backward pressure of tractor or relaxation of pull or push.-The brake d of a trailer vehicle is applied by a spring h when the pull on the draw-bar a is reduced. The spring h is connected to a lever i and hand-lever l so that its tension mav be adjusted or, when it is desired to render the brake inoperative, reduced to zero. The draw-bar is connected by a chain or the like b to the brake lever c. Reference has been directed by the Comptroller to Specifications 2003/85, 13930/85, 13142/98, 13263/02, 3005/07 and 26444/07.
Patent GB-863324-A (GB)
Title: Process for the concentration of potash ore
IPC: C01D3/08
Filed: 1958-04-25
Abstract: Sylvite is recovered from sylvite-containing clay slime-bearing potash ores by comminuting the ore to liberate the sylvite from the gangue components of the ore, heating the comminuted ore to a temperature of at least 150 DEG F. but below the fusion point of the ore, differentially charging the ore, passing the charged ore through an electrostatic field at a temperature not greater than 425 DEG F. to produce a clay slime-containing sylvite concentrate, slurrying the concentrate with brine saturated with respect to sylvite, conditioning the slurry with a flotation reagent having a preferential affinity for one of the components of the concentrate, and subjecting the slurry to froth flotation so as to recover a sylvite concentrate.  In the preferred operation, sylvinite is crushed, heated to 125 DEG -1000 DEG F., cooled to 125 DEG -350 DEG F., the particles of sylvite and halite differentially charged by cascading through an earthed vibratory trough, the sylvite electrostatically separated by free fall through a D.C. field gradient of 1,000-15,000 volts/inch, and the electrostatically produced sylvite concentrate slurried in brine and conditioned to float sylvite or halite.  Conditioning agents mentioned are C14-18 primary aliphatic amines and their salts e.g. octadecylamine acetate and hexadecylamine hydrochloride salts of fatty acids, such as oleic acid and pelargonic acid, naphthenic acid, sodium resinate, sodium salts from the reaction of sodium hydroxide with cotton seed oil or tall oil, and sulphate or sulphonate deriatives of lauric acid or lauryl alcohol; metallic cations such as lead or bismuth are necessary with some anionic reagents.
Patent GB-1065706-A (GB)
Title: Multiple filter devices
IPC: B01D35/147
Filed: 1966-03-25
Abstract: Two hollow cylindrical filter elements secured within a perforate cylinder between circular end plates by a bolt are separated by an annular disc surrounding the bolt.  The assembly is arranged with the bolt horizontal, and an outlet pipe is connected to the left-hand end-plate.  A spring-urged valve plate slidable on the rod close the opening in the annular disc so that on inward flow of liquid from the contents of a reservoir in which the assembly is immersed, filtration occurs through the left-hand (finer) element.  On a certain pressure difference being developed across the left-hand element by clogging of it, the valve is opened so that liquid also flows inwards through the right-hand (coarser) element and through the hole in the disc to the outlet. Preferably a similar valve plate, urged by a stronger spring, normally closes the inside of holes in the right-hand end plate, so that, on a higher pressure difference developing, both elements are by-passed.
Patent GB-132204-A (GB)
IPC: A43B13/12
Abstract: 132,204. Wicks, W. J. May 1, 1919. Soles. - Rubber soles A are dished upwards at the borders only, which are tapered to a fine edge, so that when nailed to the leather sole B, no gap will be left between. the soles. Reference has been directed by the Comptroller to Specification 14874/93.
Patent GB-1462782-A (GB)
Title: Resin composition
IPC: C08L65/00
Filed: 1973-01-16
Abstract: 1462782 Laminates ALBRIGHT & WILSON Ltd 16 Jan 1974 [16 Jan 1973 14 Aug 1973] 13320/75 and 13321/75 Heading B5N [Also in Division C3] Laminates are prepared from a resin composition comprising (a) an aromatic resin having repeating units of the formula wherein R<SP>1</SP> is a divalent or trivalent aromatic hydrocarbyl or divalent or trivalent aromatic hydrocarbyloxy-aromatic hydrocarbyl, or inertly substituted derivatives thereof, and Ar is a residue formed by removal of 2 nuclear hydrogen atoms from a phenolic compound having 1-3 hydroxyl groups and at least 2 nuclear hydrogen atoms, and n is 0 or 1, (b) 0À5-100% by weight (based on the weight of the resin) of an inorganic dispersing agent having at least 1 dimension less than 100 mÁ and all dimensions less than 15 Á and stable to at least 150 C., and (c) a particulate material of particle size 0À2 Á- 2 mm. and stable to at least 150 C., e.g. a flame retardant, lubricant, metal powder or formaldehyde condensate with an amine compound. The compositions may be cured with hexamethylene tetramine, an epoxide or a formaldehyde condensate with a nitrogenous compound. In examples the resins (a) are those obtained from p-xylylene glycol dimethyl ether and phenol and from p-xylylene dimethyl ether and resorcinol; the inorganic dispersing agents (b) are fumed silica, an organic derivative of hydrous magnesium aluminium silicate and finely divided chrysotile asbestos; the particulate materials (c) are aluminium powder, antimony oxide, polytetrafluoroethylene powder and zinc borate; the compositions are cured with hexamethylene tetramine and an epoxide resin; the compositions also contain methyl ethyl ketone, decachlorbiphenyl and 2-ethyl- 4-methyl imidazole; some are used to impregnate glasscloth and asbestos cloth, the impregnated cloths being formed into laminates.
Patent GB-242185-A (GB)
Title: Improvements relating to the construction of walls
IPC: E04G11/10
Filed: 1925-05-21
Abstract: 242,185. Hutchins, C., and Morris, J. R. May, 21, 1925. Moulding walls in .situ.-Concrete walls are moulded by means of a number of mould boards 1 in the form of flanged frames 2, which are connected together by channel-shaped clips 6 adapted to fit over the abutting edges 3 of the frames. The board 1 may be of wood having metallic binding strips 4, Fig. 3. At corners, inner and outer coupling members 7, 8 are provided, such members being in the form of angle bars placed' in the angle formed by the ends of the abutting corner members and to which they are connected by clips 6. A lintel 15, sill 16, and the sides of a window or door opening 12, Fig. 7, may be formed by mounting in the opening a frame 13 which is retained in position during moulding of these parts by channel clips 14 engaging the wall 11. Hollow walls are formed by using inner mould members or collapsable cores of the kind described in Specification 240,761, and the top of the wall may be closed by a metallic screen 18 which supports a concrete cap 19, Fig. 7.
Patent GB-599558-A (GB)
Title: Improved process for the catalytic reforming of naphthas
IPC: C10G35/14
Filed: 1945-05-29
Abstract: In a process for the catalytic reforming of naphthas (including cracked naphthas containing olefines and paraffins) in which the naphtha and hydrogen are passed through a bed of finely divided fluidised reforming catalyst in a reaction zone 3, fouled catalyst before regeneration is stripped in zone 20 by passage in countercurrent to a stream of hydrogen or hydrogen-rich gas, and then hydrogen is removed from the catalyst <PICT:0599558/III/1> by stripping with steam in zone 23.  The steam and hydrogen from zone 23 pass through line 28 to mix with the reaction products above the surface L of the fluidised bed; the mixture is condensed and separated into water, reformed naphtha, and recycle hydrogen. The catalyst may be a Sixth Group metal oxide, e.g., molybdenum or chromium oxide, on a zinc spinel support.ALSO:<PICT:0599558/IV/1> In a process for the catalytic reforming of naphthas in which the naphtha and hydrogen are passed through a bed of finely divided fluidized reforming catalyst in a reaction zone 3, fouled catalyst before regeneration is stripped in zone 20 by passage in countercurrent to a stream of hydrogen or hydrogen-rich gas, and then hydrogen is removed from the catalyst by stripping with steam in zone 23.  The steam and hydrogen from zone 23 pass through line 28 to mix with the reaction products above the surface L of the fluidized bed; the mixture is condensed and separated into water, reformed naphtha, and recycle hydrogen.  The catalyst may be a Sixth Group metal oxide, e.g. molybdenum or chromium oxide, or a zinc spinel support.
Patent GB-1381346-A (GB)
Title: Mould element for casting concrete
IPC: E04G11/10
Filed: 1972-03-22
Abstract: 1381346 Concrete casting mould C-I S DAHLSTROM 22 March 1972 [26 March 1971] 13430/72 Heading B5A [Also in Division E1] A wall for a concrete casting mould comprises a casting surface 5 strengthened by horizontally extending U-shaped beams 9. Further stiffening is provided by vertically extending I-shaped steel mould beams 6 that support two stay bolts 7, 8 for interconnecting opposed walls. The lower stay bolts 8 are positioned (“-1/3) way up the mould beams 6 which are strengthened there by steel washers.